Dirk,
Chris Earnest has asked how I found the history of my Euro Spec SL. I bought my SL from a man that was in our MBCA Virginia Section. He sold it because his age was getting on. He had the car 14 years, and was the person that imported it to USA. He was the third owner that worked for US Government in Germany during late 80s. I also worked in Germany in late 80s and looked at several W113s to bring back to USA, but to no avail. Anyway, by knowing him for years, and knowing the car, and how he maintained it, I jumped at the chance to own it. The SL came with many papers (all service/maintance records for over 18 years) and the original Kraftfahrzeugbrief. This brief had the two, (first and second) German owners listed.
So a couple of years ago, my wife and I visited our Germany friends (who both work for Daimler-Benz). I thought it would be nice to search, while there in Germany, for the first two owners. The brief told me the German towns that the SL was titled in. The first owner was a Professorenhaft Arztlich (medical Doctor), and titled the car in Ledreinger, the second owner is a Diplomiert Musiklehrer (music conductor) and titled the car in Tuttlingen. We had our friends help in our search, so we went to the internet for our search for the two Germans. We found that the doctor had pasted on, but we got lucky with the second owner, we found him on his internet web site for music instruction in the very same town the car was titled in. We telephoned him and told him that I own his old SL, he was surprised that it was still on the road, and that it was in the USA. I got his e-mail address and he sent me pictures of the SL back in the 70s when he owned it. We exchange e-mails from time to time to let him know of car show awards the SL now gets. Note, he met his wife with this SL, and they took their honeymoon in it.
So as you can see, I was lucky to find the complete history of my SL. Currently, our friends back in Germany are currently looking thru Daimler-Benz files to locate service records of those first two ownerships. By my conversation with the music conductor, I know the towns where the Daimler-Benz service facilities are located, now it is a problem to search records (no records were in the DB computer/microfiche).
Anyway, Chris, please let me know your progress on your history, and by the way, my SL also was delivered to Reutlingen.